Boom body lifting angle indicating device of telescopic boom forklift

Abstract

The utility model discloses a telescopic arm forklift arm body lifting angle indicating device which comprises a forklift arm body and a pendulum bob pointer assembly arranged on the forklift arm body, the pendulum bob pointer assembly comprises a pendulum bob and a pointer, the pendulum bob and the pointer are fixed, a rotating hole is formed in the pendulum bob, and the pendulum bob and the pointer can rotate around the rotating hole. The dial assembly is arranged on the forklift arm body, the dial assembly comprises a mounting disc and an arc disc, the circle center position of the arc disc and the rotating hole are located in the same position, and the graduated scale is fixed to the arc disc; according to the arm body lifting angle indicating device of the telescopic arm forklift, through the pendulum bob pointer assembly and the dial assembly which are arranged on the forklift arm body, the lifting angle of the forklift arm can be visually displayed, an operator can accurately judge the inclination angle of the arm body under the condition that the operator does not need to depend on experience, and the operation accuracy is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic arm off-road forklifts, in particular to a telescopic arm forklift arm lifting angle indicating device. Background Art

[0002] With the rapid development of the domestic construction industry, especially the construction of high-speed railways and the establishment of large-scale farms, the demand for engineering vehicles has gradually increased. Engineering vehicles in construction and agricultural operations usually need to have high maneuverability and flexibility, as well as meet the requirements of high lifting and deep operations. For this reason, telescopic arm off-road forklifts have gradually become one of the important cargo handling tools on construction sites and farms. The working principle of this type of forklift is mainly to transport cargo to a specified height or depth through the telescopic arm's telescopic and lifting functions.

[0003] However, existing telescopic arm off-road forklifts have certain limitations in their design. Most traditional telescopic arm forklifts are not equipped with angle indicator devices, or are only equipped with less conspicuous indicator devices. In actual operation, the lifting angle of the telescopic arm depends entirely on the operator's experience and judgment, and there is a lack of clear angle prompts. This design defect can easily lead to operational errors, especially in high-altitude operations or confined spaces that require precise control of the lifting angle, which may cause safety hazards. In addition, long-term reliance on the operator's experience will also increase the difficulty of operation for novice operators, affecting work efficiency and operational safety. Utility Model Content

[0004] The purpose of the utility model is to provide a telescopic arm forklift arm lifting angle indicating device to solve the problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a telescopic forklift arm lifting angle indicator device, comprising a forklift arm body, including:

[0006] A pendulum pointer assembly is provided on the forklift arm body, the pendulum pointer assembly comprising a pendulum and a pointer, the pendulum and the pointer being fixed, a rotation hole being provided on the pendulum, and the pendulum and the pointer being capable of rotating around the rotation hole;

[0007] A scale plate assembly is provided on the forklift arm body, the scale plate assembly comprising a mounting plate and an arc plate, the center position of the arc plate being co-located with the rotating hole;

[0008] A scale is fixed on the arc disk.

[0009] Preferably, the pendulum is welded to one end of the pointer.

[0010] Preferably, the center of mass of the pendulum pointer assembly is always located directly below the rotating hole.

[0011] Preferably, a waist-shaped fixing hole is provided on the mounting plate.

[0012] Preferably, the scale is fitted with the arc edge of the arc disk.

[0013] Preferably, the pendulum is rotatably connected to the forklift arm body through a rotating hole.

[0014] Preferably, the angle values ​​marked on the scale are marked at intervals according to the changes in the tilt angle of the forklift arm body.

[0015] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0016] This telescopic forklift arm lift angle indicator device, with a pendulum pointer assembly and a dial assembly mounted on the forklift arm, intuitively displays the lift angle of the forklift arm, enabling operators to accurately determine the arm's tilt angle without relying on prior experience. This significantly improves operational accuracy and is particularly suitable for operations requiring precise lift angle control, such as at high altitudes and in confined spaces. The device provides clear angle indication, reducing safety hazards caused by misjudgment. In environments requiring precise lift angle control, the device helps operators effectively control the angle, avoiding potential risks associated with misoperation and improving operational safety. The pendulum pointer assembly and dial assembly offer simple structure and intuitive indication, helping novices quickly master the operation and reducing reliance on prior experience. This not only reduces operational difficulty but also shortens training time, enhancing the forklift's suitability for use in environments such as construction sites and farms. The clear angle indication helps operators quickly and accurately adjust the arm angle, eliminating the time-consuming process of repeated angle calibration, thereby effectively improving operational efficiency. In addition, the arc-shaped fitting design of the scale and the arc disk makes the angle display more intuitive, further improving the ease of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the pendulum pointer assembly and scale of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the pendulum pointer assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the dial assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the scale of the utility model.

[0022] In the figure: 1. Forklift arm body; 2. Pendulum pointer assembly; 21. Pendulum; 22. Pointer; 23. Rotation hole; 3. Scale assembly; 31. Mounting plate; 32. Arc plate; 33. Waist-shaped fixing hole; 4. Scale. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1-Figure 5 As shown, a telescopic forklift arm lifting angle indicator device includes a forklift arm body 1, a pendulum pointer assembly 2 and a dial assembly 3 mounted on the forklift arm body 1. The pendulum pointer assembly 2 includes a pendulum 21 and a pointer 22. The pendulum 21 has a rotation hole 23, allowing the pendulum 21 and pointer 22 to rotate about the rotation hole. The dial assembly 3 is mounted on the forklift arm body 1 and includes a mounting plate 31 and a circular plate 32. The center of the circular plate 32 is coaxial with the rotation hole 23, and a scale 4 is fixed to the circular plate 32.

[0025] During the lifting process of the forklift arm, the pendulum 21 is always tilted vertically downward due to the force of gravity, forming an indicated angle between the pointer 22 and the scale 4, reflecting the tilt angle of the forklift arm. The scale 4 has a one-to-one correspondence with the arm lifting angle. By observing the scale value pointed by the pointer 22, the specific tilt angle of the forklift arm can be determined. This indicator device has a simple structure and uses the physical action of the pendulum to provide real-time and intuitive angle indication. It does not require electronic components, reducing maintenance costs and failure rates. Furthermore, its structure facilitates direct installation on the forklift arm, improving the device's applicability and durability.

[0026] In the specific design of the device, different materials can be selected to make the pendulum 21 and the pointer 22 according to the use requirements to adapt to different environments. In addition, the diameter of the rotating hole 23 and the curvature of the arc disk 32 can be appropriately adjusted to adapt to forklift arms of different specifications.

[0027] The pendulum 21 is fixed to one end of the pointer 22 by welding. After welding, the pendulum 21 and the pointer 22 become a whole, and the stability is enhanced, so that the pendulum pointer assembly 2 can rotate stably during the raising or lowering of the forklift arm. Fixing by welding effectively prevents loosening or displacement between the pendulum 21 and the pointer 22, thereby improving the accuracy and service life of the indication.

[0028] The pendulum 21 and the pointer 22 may also be fixed by other means, such as using fastening screws or adhesives, to adapt to different strength and working conditions, but the fixing strength must be ensured to maintain the indication accuracy.

[0029] The center of mass of the pendulum pointer assembly 2 is always located directly below the rotating hole 23. The center of mass located directly below the rotating hole ensures that the pendulum 21 is always pointed vertically downward under the action of gravity, thereby keeping the indication accuracy of the pointer 22 free from external interference. This design increases the indication accuracy of the pointer 22, ensures the stability and reliability of the angle indication, and is suitable for a variety of working environments. The center of mass can be accurately positioned by adjusting the weight distribution of the pendulum 21 or using a center of gravity adjustment device, thereby meeting the angle indication requirements of different forklift arms.

[0030] A waist-shaped fixing hole 33 is provided on the mounting plate 31. The setting of the waist-shaped fixing hole 33 allows the mounting plate 31 to have a certain adjustment space in the installation position so that it can be flexibly installed on forklift arms of different models. The adjustable design of the waist-shaped fixing hole 33 enhances the adaptability of the device, reduces errors during the installation process, and effectively improves the practicality of the device.

[0031] The shape and size of the fixing holes can be changed according to actual installation needs, such as using circular holes or multi-hole fixing designs to adapt to different installation requirements.

[0032] The scale 4 fits tightly against the edge of the arc disk 32, so that the pointer 22 can smoothly point to different scales on the arc disk 32, which is convenient for reading. The fitting design avoids gaps or errors between the pointer 22 and the scale 4, making the angle indication more accurate and the reading more intuitive and reliable.

[0033] The scale 4 may be made of a magnetic or adhesive material to ensure its stability in fitting in different environments.

[0034] The pendulum 21 is rotatably connected to the forklift arm body 1 through the rotating hole 23. The rotating connection of the pendulum 21 is achieved through the rotating hole 23, so that it can rotate freely under the action of gravity, thereby indicating the lifting angle of the forklift arm. The rotating connection method simplifies the device structure, improves the reliability and convenience of the indicating device, and reduces repair and maintenance costs.

[0035] Ball bearings or other types of rotary joints can be used instead of ordinary rotary hole connections to improve the wear resistance and service life of the connection.

[0036] The angle values ​​marked on the scale 4 are marked at intervals according to the inclination angle changes of the forklift arm body 1. The scale on the scale 4 is marked according to the inclination angle change intervals of the forklift arm, so that each movement of the pointer 22 corresponds to the change in the actual inclination angle of the forklift arm, thereby intuitively reflecting the angle change of the forklift arm. This design allows the operator to intuitively read the lifting angle of the forklift arm, facilitates and accurately controls the arm body angle, and improves the safety and efficiency of the operation.

[0037] The scale interval can be adjusted according to different application requirements, such as marking as fine intervals or marking in other angle units to meet special angle control requirements.

[0038] Operation: As the forklift arm 1 is lifted, its tilt angle relative to the ground gradually increases. The dial assembly 3, comprising a mounting plate 31, a circular disc 32, and a scale 4, mounted on the arm 1, changes in sync with the arm's tilt. In the pendulum pointer assembly 2, because the center of mass of the pendulum 21 remains directly below the rotation hole 23 under the influence of gravity, the pointer 22 remains vertically downward, maintaining a constant angle relative to the ground. In this state, as the arm 1 is lifted, the angles of the circular disc 32 and scale 4 on the dial assembly 3 change relative to the pointer 22. The position on the scale 4 indicated by the pointer 22 therefore corresponds to the tilt angle of the arm 1. As the arm 1 is at different tilt angles, the pointer 22 displays the corresponding angle scale value on the scale 4, directly reflecting the current arm lift angle. The operator can easily read the arm's tilt angle by observing the position of the pointer 22 on the scale 4, thereby determining the lift status.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic forklift arm lifting angle indicator device, comprising a forklift arm body (1), characterized in that: include: A pendulum pointer assembly (2) is provided on a forklift arm body (1), the pendulum pointer assembly (2) comprising a pendulum (21) and a pointer (22), the pendulum (21) and the pointer (22) being fixed, a rotation hole (23) being provided on the pendulum (21), and the pendulum (21) and the pointer (22) being capable of rotating around the rotation hole; A scale plate assembly (3) is provided on the forklift arm body (1), the scale plate assembly (3) comprising a mounting plate (31) and an arc plate (32), wherein the center position of the arc plate (32) is co-located with the rotation hole (23); A scale (4) is fixed on the arc disk (32).

2. The telescopic forklift arm lifting angle indicator device according to claim 1, characterized in that: The pendulum (21) is welded to one end of the pointer (22).

3. The telescopic forklift arm lifting angle indicator device according to claim 1, characterized in that: The center of mass of the pendulum pointer assembly (2) is always located directly below the rotating hole (23).

4. The telescopic forklift arm lifting angle indicator device according to claim 1, characterized in that: The installation plate (31) is provided with a waist-shaped fixing hole (33).

5. The telescopic forklift arm lifting angle indicator device according to claim 1, characterized in that: The scale (4) is fitted with the arc edge of the arc disk (32).

6. The telescopic forklift arm lifting angle indicator device according to claim 1, characterized in that: The pendulum (21) is rotatably connected to the forklift arm body (1) through a rotating hole (23).

7. The telescopic forklift arm lifting angle indicator device according to claim 1, characterized in that: The angle values ​​marked on the scale (4) are marked at intervals according to the change in the tilt angle of the forklift arm body (1).

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